You can watch your favorite TV channels with this remote control for Android TV. This remote control app allows you to switch channels or change the volume easily. It also has a built-in infra-red (IR) emitter for those TVs that have an IR receiver. 

The app is very easy to use, with a clean interface and simple controls, so you won't have any trouble figuring out how to use it. It also has a built-in mute and speaker function to make your experience even better.

To set the volume, you just have to use your device's volume control. To mute the sound, use the mute button.